Vill CONTENTS. 
SCIENTIFiIic INTELLIGENCE. 
Physics. —QOn Regelation, 414.—On the changes produced in the position of the fixed lines 
in the spectrum =f hy pouistie acid by changes in density, Wetss, 415.—Note on Dr. J. 
Musical Sounds on the flames of a jet of Coal Gas), 
ith an experiment by Dr. Charles — and Note by Dr. Sharswood, 416.— 
Color of Blood Globules—Editorial Note to Dr. Reuben’s paper: Subjective Optical 
n some dilusions, ale oer phenomena, attendant on vision 
through colored media, by Simon Newcoms, 418. « 
Chemistry.—Researches on the mutual relations of the Equivalents, by J. S. Sras, 419.— 
e the polyatomic bases of the nitrogen, phosphorus and arsenic series, A, W. Hor- 
NN, 420.—On the cyanid of Ethylene: On the separation of Mono- Bi- and Triethy]- 
ite, "422, 
Technical Chemistry—On the Alloys of Copper and Zine, by Franx H. Storer, 423.— 
: th : 
B. F. Crate, 429 me the Amounts of Lead contained in some Silver Coins, by ELior 
and Storer, 430. 
Geology.—Botanical and Paleontological Report en the Geological State Survey of Ar- 
kansas; by Leo Lesquereux, nea f. Heer’s reply to Dr. Newberry on the Age 
of the Nebraska Leaves, 435. he causes which gave rise to the generally elonga- 
ted form and parallel arrangement a the pebbles in the Newport Conglomerate, by 
Prof. WitxiraM B. Roger 
Mineralogy.—Note on Chioritoid from Canada, by T. Srrrry Honv, F.R.S., 442. 
Botany.—Journal of the Proceedings of the Linnsan Society, 443. 
Review.-Life on the Earth, its = and crac by Prof. Jonn Purturrs, M.A., 
LL.D., F.R.S., 444.—Species not! e Result of Secondary Causes 
by C. R. Bree, Esq., M.D., ELS, &c., 449. 
Book Notices.—The Manufactnre of Vinegar: its Theory and Practice, with especial ref- 
ence to the Quick Process, by Cuartes M. WetTueri.u, Ph.D., M.D., 450.~Cham- 
bers’ Encyclopedia: The American Cyclopedia: Second Report of a Geological Re- 
‘connoissance of the Middle and Southern Counties of Arkansas, made during the years 
1853 and 1860, by D. D. Owen, 455. 
Miscellaneous Scientific Intelligence-——Catalogue of the Meteoric Collection of CHaRLEs 
—s Saran, 456. —Note and Correction to Mr. T’. Sterry Hunt’s paper on Types : 
ey : Kentucky Geological Reports, 460 
is a Haeusser: Prof. Hochstetter: Prof. J. G.C. Lehmann: G. H. 
Sckakens : Dr. J. F. Klotzsch: oo de Vilmorin, 61-—J. B. Payer: John E. Le. 
Conte, 462,— Prof. : 
‘New Comets: New ee aE ian for Ady. of Science, 463. 
Undex, 464. 
ERRATA. 
ep inet * Rock” read “ Rocks.” Jor form line 15 from ie ro 
1 tep by step.” —244, 1. 18 bottom sted, 134 ftp, i: 17 
from sa, for wr West” read “this region.”--274, |. 14 from top, for close. — 245,17 
“+ phytomorphosis.” —275, |. 11 from top, for “It” read “ Grass.” 2B AE Form tops 
*“ flanes”’ * flanes.”"— bottom, for * brocheure” read brochure. or, 
4.16 from top, for * * gellatinous” read “ gelatinous.”’—302, 1. 19 from top, for “ 
al > othgiariath, #5! some copies ad rs . 15 from 18 Tom tp, Trachea rend 
— ure. 2-308, 1. 11 from top, for * mabe post ao in some copies only. 
any 
